<template>
  <div class="app-container">
    <el-card class="filter-container" shadow="never">
      <div>
        <el-button
          style="float:right"
          type="primary"
          @click="handleSearchList()"
          size="small">
          查询搜索
        </el-button>
        <el-button
          style="float:right;margin-right: 15px"
          @click="handleResetSearch()"
          size="small">
          重置
        </el-button>
      </div>
      <div style="margin-top: 15px">
        <el-form :inline="true" :model="listQuery" size="small" label-width="140px">
          <el-form-item label="资源名称：">
            <el-input v-model="listQuery.name" class="input-width" placeholder="资源名称" clearable></el-input>
          </el-form-item>
          <el-form-item label="资源路径：">
            <el-input v-model="listQuery.url" class="input-width" placeholder="资源路径" clearable></el-input>
          </el-form-item>
          <el-form-item label="资源分类：">
            <el-select v-model="listQuery.categoryId" placeholder="全部" clearable class="input-width">
              <el-option v-for="item in categoryOptions"
                         :key="item.value"
                         :label="item.label"
                         :value="item.value">
              </el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </div>
    </el-card>
    <el-card class="operate-container" shadow="never">
      <el-button size="mini" class="btn-add" @click="handleAdd()" style="margin-left: 20px">添加</el-button>
      <el-button size="mini" class="btn-add" @click="handleShowCategory()">资源分类</el-button>
    </el-card>
    <div class="table-container">
      <el-table ref="resourceTable"
                :data="list"
                style="width: 100%;"
                v-loading="listLoading" border>
        <el-table-column label="编号" width="100" align="center">
          <template slot-scope="scope">{{scope.row.id}}</template>
        </el-table-column>
        <el-table-column label="资源名称" align="center">
          <template slot-scope="scope">{{scope.row.name}}</template>
        </el-table-column>
        <el-table-column label="资源路径" align="center">
          <template slot-scope="scope">{{scope.row.url}}</template>
        </el-table-column>
        <el-table-column label="描述" align="center">
          <template slot-scope="scope">{{scope.row.description}}</template>
        </el-table-column>
        <el-table-column label="添加时间" width="180" align="center">
          <template slot-scope="scope">{{scope.row.createdTime | formatDateTime}}</template>
        </el-table-column>
        <el-table-column label="操作" width="140" align="center">
          <template slot-scope="scope">
            <el-button size="mini"
                       type="text"
                       @click="handleUpdate(scope.$index, scope.row)">
              编辑
            </el-button>
            <el-button size="mini"
                       type="text"
                       @click="handleDelete(scope.$index, scope.row)">删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <div class="pagination-container">
      <el-pagination
        background
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        layout="total, sizes,prev, pager, next,jumper"
        :current-page.sync="listQuery.current"
        :page-size="listQuery.size"
        :page-sizes="[10,15,20]"
        :total="total">
      </el-pagination>
    </div>
    <el-dialog
      :title="isEdit?'编辑资源':'添加资源'"
      :visible.sync="dialogVisible"
      width="40%">
      <el-form :model="resource"
               ref="resourceForm"
               label-width="150px" size="small">
        <el-form-item label="资源名称：">
          <el-input v-model="resource.name" style="width: 250px"></el-input>
        </el-form-item>
        <el-form-item label="资源路径：">
          <el-input v-model="resource.url" style="width: 250px"></el-input>
        </el-form-item>
        <el-form-item label="资源分类：">
          <el-select v-model="resource.categoryId" placeholder="全部" clearable style="width: 250px">
            <el-option v-for="item in categoryOptions"
                       :key="item.value"
                       :label="item.label"
                       :value="item.value">
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="描述：">
          <el-input v-model="resource.description"
                    type="textarea"
                    :rows="5"
                    style="width: 250px"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false" size="small">取 消</el-button>
        <el-button type="primary" @click="handleDialogConfirm()" size="small">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
import { fetchList, saveOrUpdate, deleteResource } from '@/services/resource'
import { listAllCate } from '@/services/resourceCategory'
import { formatDate } from '@/utils/date'

const defaultListQuery = {
  size: 15,
  current: 1,
  name: null,
  url: null,
  categoryId: null
}
const defaultResource = {
  id: null,
  name: null,
  url: null,
  categoryId: null,
  description: ''
}
export default {
  name: 'resourceList',
  title: '资源管理',
  data () {
    return {
      listQuery: Object.assign({}, defaultListQuery),
      list: null,
      total: null,
      listLoading: false,
      dialogVisible: false,
      resource: Object.assign({}, defaultResource),
      isEdit: false,
      categoryOptions: [],
      defaultCategoryId: null
    }
  },
  created () {
    this.getList()
    this.getCateList()
  },
  filters: {
    formatDateTime (time) {
      if (time == null || time === '') {
        return 'N/A'
      }
      const date = new Date(time)
      return formatDate(date, 'yyyy-MM-dd hh:mm:ss')
    }
  },
  methods: {
    handleResetSearch () {
      this.listQuery = Object.assign({}, defaultListQuery)
    },
    handleSearchList () {
      this.listQuery.current = 1
      this.getList()
    },
    handleSizeChange (val) {
      this.listQuery.size = val
      this.getList()
    },
    handleCurrentChange (val) {
      this.listQuery.current = val
      this.getList()
    },
    handleAdd () {
      this.dialogVisible = true
      this.isEdit = false
      this.resource = Object.assign({}, defaultResource)
      this.resource.categoryId = this.defaultCategoryId
    },
    handleDelete (index, row) {
      this.$confirm('是否要删除该资源?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        deleteResource(row.id).then(response => {
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
          this.getList()
        })
      })
    },
    handleUpdate (index, row) {
      this.dialogVisible = true
      this.isEdit = true
      this.resource = Object.assign({}, row)
    },
    handleDialogConfirm () {
      if (this.isEdit) {
        saveOrUpdate(this.resource).then(response => {
          this.$message({
            message: '修改成功！',
            type: 'success'
          })
          this.dialogVisible = false
          this.getList()
        })
      } else {
        saveOrUpdate(this.resource).then(response => {
          this.$message({
            message: '添加成功！',
            type: 'success'
          })
          this.dialogVisible = false
          this.getList()
        })
      }
    },
    handleShowCategory () {
      this.$router.push({ path: '/resourceCategory' })
    },
    getList () {
      this.listLoading = true
      fetchList(this.listQuery).then(response => {
        this.listLoading = false
        this.list = response.data.records
        this.total = response.data.total
      })
    },
    getCateList () {
      listAllCate().then(response => {
        const cateList = response.data
        for (let i = 0; i < cateList.length; i++) {
          const cate = cateList[i]
          this.categoryOptions.push({ label: cate.name, value: cate.id })
        }
        this.defaultCategoryId = cateList[0].id
      })
    }
  }
}
</script>
<style></style>
